The Skycaddie has up to 14 hours of battery power in a single charge. here is the amazon page with the battery life on it: http://www.amazon.com/SkyCaddie-SG5-Golf-GPS-Black/dp/B0015UYEE2

Currently, the least expensive SkyCaddie is the SkyCaddie SG4 GPS. This model is available on Amazon.com for $99.98: http://www.amazon.com/Skygolf-sg4-gps-digital-skycaddie/dp/tags-on-product/B001CH5I84 Other models cost more, and may not be cheapest on Amazon.

While both Garmin and Skycaddie are companies which make electronics devices that use GPS, the function is completely different. Garmin mainly makes GPSs for vehicles while Skycaddie uses its GPS technology to help golfers on the golf course.

A Skycaddie costs could range from $100 to $350. How the skycaddie works is it uses GPS (also known as the Global Positioning System) to pinpoint your location and the distance to the target when playing golf.

Skycaddie GPS has gotten great reviews for reliability, accuracy, and sleekness. Read more about how to evaluate a course or find the nearest dining to your course at http://www.skygolf.com/ and http://gps.about.com/od/sportsandfitness/tp/golf_gps.htm.